Envelop-sealing machine.



v w. E. JACKSON. ENVELOP SEALING- MACHINE.

APPLICATION FILED AUG. 1, 1910.

988,713. I Patented Apr. 4, 1911.

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W. E. JACKSON. ENVBLOP SEALING MACHINE.

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Mug I I uvvezvron A TTORNE Y APPLICATION I'HJJD AUG. 1, 1910. 988,71 3. Patented Apr. 4, 1911.

UNITE STATES PATENT. OFFICE.

WALTER E. JACKSON, 0F LINCOLN, NEBRASKA.

ENVELOP-SEALING MACHINE.

To all whom 'it may concern:

Be it known that I, l/VALTER E. J AGKSON, a citizen of the United States, residing at Lincoln, in the county of Lancaster and State of Nebraska, have invented new and useful Improvements in Envelop-Sealing Machines, of which the following is a specification.

The present invention relates to envelop sealing machines and has for its purpose to provide a machine of that character wherein the flaps of the envelops are moistened, folded and then sealed in one continuous and progressive operation and wherein these operations are performed in such a manner as to keep the face of the envelop, bearing the name, address, etc., at all times removed from such position as would smear or otherwise mar the same.

Summarily stated the invention comprises a tray, or table from which the envelops are fed singly and during such movement have their flaps brought forcibly into contact with a moistening roller; and in the further operation these flaps are folded through the medium of a peculiar construction in the tray, and finally said flaps are sealed to the body of the envelop through the medium of a pair of cooperating rollers.

The machine is adapted to be manually operated by a single person and the construction and arrangement of parts are such as to make the Whole simple, neat in appearance, cheap of manufacture, to the end that the same may commend itself as an appropriate article to those whose business requires much correspondence.

The invention is shown in its preferred embodiment in the accompanying drawings wherein:

Figure 1, is a top plan view over all; Fig. 2, is a side elevation of the same; Fig. 3, is a similar view with some of the parts in sec tion; Fig. 4, is an elevation of the opposite side of the machine; Fig. 5, is an end elevation; Fig. 6, is an opposite end elevation; Fig. 7, is a transverse sectional view of Fig. 4 taken on the line a?); and Fig. 8, is a detail view of the moistening roller.

Similar letters refer to similar parts throughout the several views.

The machine is operated by revolving the shaft U which carries the roller It and pulley D. The roller S is revolved by contact with roller B. By means of the belt B and pulley K the motion is transmitted to Specification of Letters Patent.

Application filed August 1, 1910.

Patented Apr. 4, 1911. Serial No. 574,927.

the shaft N, which carries the moistening disk E causing the top of the disk to revolve toward the head of the machine. The above describes the movement of the machine.

The disk E dips into a tank of water F. The back face of the disk E is covered with felt or other materialA which carries the water to the top where it is used to moisten the mucilage on the envelop. Any surplus water carried by the wheel is removed by the spring shield I before coming in contact with envelop flap, which shield also serves as a guide for the flap' of the envelop. Water may be removed from the tank F by opening the faucet P which connects with the water tank by a tube P, said faucet being placed on the lower edge of the front side of the machine for convenience.

The table Q or tray is of thin metal supported below by wood Q, and is cut away on the back to permit the insertion of the envelop flap. Formed in the tray Q is an inclined and diagonally disposed folding member V which turns the envelop flap against the envelop body.

The envelop is placed on the table Q with the address side up and the flap folding down against the guide I, and is pushed toward the head of the machine along the guide and against the moistening disk E.

In passing the disk E the pressure spring I-I forces the flap of the envelop in contact with the disk. This pressure spring H is secured at one end to the frame of the machine at W, (Fig. 1), the other end pressing against the disk E. The relative position of the pressure spring to the disk is shown in Fi 8. As the envelop advances, the incline closes the flap of the envelop preparatory to its passing between the sealing rollers R and S. The rollers R and S are covered with felt or other material and the pressure necessary to seal the envelop is exerted by the spring G. The pressure of the spring G is regulated by the screw J. The pressure of spring G is transmitted to the roller S through the beam L, which rests on the bearing blocks M of the roller shaft. These bearing blocks rest in vertical slots in the frame of the machine.

The supporting frame Y may be of any form suitable for holding the various parts in their relative positions described and shown in the drawings.

I claim that in the arrangement of this machine With the moistening disk below the table, revolving in a perpendicular direction toward the head of the machine, that I have a machine Which automatically moistens the mucilage on the envelop Without there being any possibility of Wetting the envelop in any other place, and that it is a great improvement over all machines Where the water is supplied to the moistener by dripping from above. I further claim that the position in Which the envelop passes through the machine relative to the address side is of importance, as With the address side up there is no danger of soiling, or blurring the printed address.

The machine is of simple construction, small in size, and operated by hand or power.

What is claimed as new is:

An envelop sealing machine comprising a table having a straight edge and a Working end of said table, a moistening roller be neath said table and having its outer face substantially in alinement With the Working edge of the table, a diagonally disposed folding slot near the delivery end of said table, a liquid receptacle within Which said roller is mounted, an outlet faucet pipe leading to a point below the straight edge of said table, a resilient Wiper disposed at right angles to said table and contacting with said moisten x ing roller, and a spring for pressing the flap of an envelop against the exposed surface of the moistening roller.

In testimony whereof I have hereunto set my hand in presence of two subscribing Wit- WALTER E. JACKSON. Witnesses ARTHUR C. HERRIOK, CARLTON E. RENNER.

v I'JESSQS.

Copies of this patent may be obtained for five cents each, by addressing" the Commissioner of Patents, Washington, D. G. 

